The utility model discloses an environment -friendly device for plastics production, the indoor set passes through the pipeline with outdoor unit and communicates each other, the baffle is all installed on every limit of indoor set gas collecting channel, the bottom surface of gas collecting channel sets up to holding together the mouth, in outdoor unit's the waste gas purification box and be provided with the shower head, the below of shower head sets up to the filling layer, the lower extreme of filling layer sets up to separating the net, UFCO module box demountable installation is in wastegas purification's inside, and four limits of UFCO module box all with waste gas purification's inner wall zonulae occludens, activated carbon filter's left end passes through pipeline intercommunication waste gas purification, activated carbon filter's right -hand member intercommunication draught fan, the upper end of draught fan is provided with the discharge port, this an environment -friendly device for plastics production, circulating water system, high utilization rate, sealing technology handles and guarantees the leakproofness, built -in multilayer waste gas treatment system, absorbto waste gas, filtration is carried out, the effect of handling, and finally discharge out gas up to standard.